How to reduce babel-polyfill size (150 KB minified)?

I just setup new webpack 4 project and in my main js file imported babel-polyfill

import 'babel-polyfill';

And after webpack production build i analized my bandle with source-map-explorer i see such picture

So babel-polyfill (core-js) took 150 Kb which is too much IMO.

Any thoughts how can i reduce size ? I don't want to include any specific polyfills (there should be some tree-shaking, so not used code should be deleted ?).

I use this boilerplate: https://github.com/flexdinesh/react-redux-boilerplate/tree/master/config

from How to reduce babel-polyfill size (150 KB minified)?